TM-9-2320-361-34
2-1/2-TON, 6x6, M44A2 SERIES TRUCKS (MULTIFUEL)
TECHNICAL MANUAL; DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE
MAY 1992
TM-9-2320-361-34 - Page 59 of 764
TM
9-2320-361-34
3-3. CYLINDER HEAD MAINTENANCE
(Contd)
WARNING
Ensure engine compartment is free of all tools and working
materials before starting engine. Failure to do this may result in
damage to equipment and injury to personnel.
12. Start engine (TM 9-2320-36 1-10). Idle engine until coolant temperature reaches a minimum
of 175°F (79C) before engine shutdown.
13. Remove no. 1 through no. 3
injector tubes (para. 5-3).
14. Remove rocker arm cover and gasket
(para. 3-6).
15. Remove rocker arm assembly (para. 3-7).
WARNING
Hand protection must be worn during nut retightening. Engine
surface is hot and can cause injury to personnel.
CAUTION
●
●
All nuts must rotate during tightening recheck. Failure of nut(s)
to rotate may result in improper torque setting, cylinder head
warpage, and gasket failure.
During nuts tightening recheck, engine coolant temperature must
remain 170F (77C) or above to maintain cylinder head
expansion. Tightening of nuts when coolant is below 170F (77°C)
may result in cylinder head warpage and gasket failure.
NOTE
If studs rotate when torquing nuts, remove cylinder head (task a)
and repair or replace studs (para. 2-10).
16. Tighten fourteen nuts (1) to 130 lb-ft (176 N.m) in torque sequence shown.
3-8
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